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Replace tabs with spaces in vim
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IIRC, something like:
set tabstop=2 shiftwidth=2 expandtab
should do the trick. If you already have tabs, then follow it up with a nice global RE to replace them with double spaces.
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builder for HashMap
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22
Since Java 9 Map interface contains:
Map.of(k1,v1, k2,v2, ..)
Map.ofEntries(Map.entry(k1,v1)...
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
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842
Use collections.Counter:
>>> from collections import Counter
>>> A = Counter(...
Hide/Show Column in an HTML Table
...assuming style rules like:
table.hide1 .col1 { display: none; }
table.hide2 .col2 { display: none; }
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This is going to be faster than any JS loop approach; for really long tables it can make a significant difference to responsiveness.
If you can get away with not supporting IE6, you could use...
Best data type for storing currency values in a MySQL database
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229
Something like Decimal(19,4) usually works pretty well in most cases. You can adjust the scale...
INSERT with SELECT
...(name, location, gid)
SELECT name, location, 1
FROM courses
WHERE cid = 2
You can put a constant of the same type as gid in its place, not just 1, of course. And, I just made up the cid value.
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How to trim white spaces of array values in php
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12 Answers
12
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Using Case/Switch and GetType to determine the object [duplicate]
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answered Apr 2 '09 at 9:10
Anton GogolevAnton Gogolev
105k3636 gold badges187187 silver badges274274 bronze badges
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Regex: match everything but specific pattern
...fic pattern (specifically index.php and what follows, like index.php?id=2342343 )
7 Answers
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List comprehension vs. lambda + filter
...able (value). That is slower than accessing a local variable and in Python 2.x the list comprehension only accesses local variables. If you are using Python 3.x the list comprehension runs in a separate function so it will also be accessing value through a closure and this difference won't apply.
T...